42421413434 has 8 divisors (see below), whose sum is σ = 63641897748. Its totient is φ = 21207447520.

The previous prime is 42421413407. The next prime is 42421413473. The reversal of 42421413434 is 43431412424.

It can be written as a sum of positive squares in 2 ways, for example, as 40050015625 + 2371397809 = 200125^2 + 48697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42421413434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613297 + ... + 1639380.

Almost surely, 2^42421413434 is an apocalyptic number.

42421413434 is a deficient number, since it is larger than the sum of its proper divisors (21220484314).

42421413434 is a wasteful number, since it uses less digits than its factorization.

42421413434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259200.

The product of its digits is 36864, while the sum is 32.

Adding to 42421413434 its reverse (43431412424), we get a palindrome (85852825858).

The spelling of 42421413434 in words is "forty-two billion, four hundred twenty-one million, four hundred thirteen thousand, four hundred thirty-four".